doragasu wrote:TI DSPs are really easy to use. They can be coded using C/C++ and there are free libraries available to use their peripherals. You'll need to learn assembly language if you want to extract all the juice of the DSPs, but I suppose C is enough for most tasks.
It would be useful to know an estimation about the MIPS/MFLOPS and the amount of RAM required for the processor.
Yeah, I suppose the TI DSP isn't too bad... it at least has decent tools available. I imagine you'd use something like
this - it uses an external rom and has 128KB of internal ram. It also uses a flat package instead of the more common (and harder to solder) BGA package.
$14 in single unit quantities from DigiKey isn't bad as far as price goes. That's the cheapest external rom TMS DSP DigiKey carries. They have cheaper DSPs, but they're all internal rom. I need to get a few datasheets on them... I assume those are programmable roms, not mask roms?
Or maybe you were thinking something like
this? This one is more like the SVP... a 16-bit DSP with not much else. It is 5V, though, which might make it easier to work with.
Looking at the SuperH chips, you have
this and
this. The first has a 16-bit external bus, while the latter has a 32-bit bus. Oddly enough, the 32-bit bus part is cheaper. Both are romless and have 8KB of internal RAM.